image thumbnail

Rotate Image

version 1.0.0.0 (3.67 KB) by Ohad Gal
Rotate an image in X degrees.

23.7K Downloads

Updated 22 Oct 2003

View License

% rotate_image - rotates an image given inside a matrix by the amount of "degree" counter-clockwise
% using linear interpolation of the output grid points from the back-rotated input points
% in this way, the output image will never have a "blank" point
%
% Format: [out_image_m,out_ref_points_m] = rotate_image( degree, in_image_m, in_ref_points_m )
%
% Input: degree - rotation degree in dergees, counter-clockwise
% in_image_m - input image, given inside a matrix (gray level image only)
% in_ref_points_m - points on the image wich their output coordinates will be given
% after the rotation. given format of this matrix is:
% [ x1,x2,...,xn;y1,y2,...,yn]
%
% Output: out_image_m - the output image
% out_ref_points_m - the position of the input handle points after the rotation.
% this element is given in "in_ref_points_m" exists
% format of the matrix is the same as of "in_ref_points_m"
%
% NOTE: By definition of rotation, in order to perserve all the image inside the
% rotated image space, the output image will be a matrix with a bigger size.
%

Call the function with no parameters, to activate the demo

Cite As

Ohad Gal (2021). Rotate Image (https://www.mathworks.com/matlabcentral/fileexchange/4071-rotate-image), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R12.1
Compatible with any release
Platform Compatibility
Windows macOS Linux
Acknowledgements

Inspired: Automatic Image Registration

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!